Tive matter, but actual plans of temples, dwelllngs, and soforth. In proportlon as these plans were perfect, we should be ln a pos1tlon at any moment to construct more or less accu rate representatlons of these ancient buildlngs or even to make a 11fe-smze restoration. In such a case an01ent arch1 tecture would be ln a cond1tion, so far as our appreclatlon of 1t ls concerned, analogous to that ln wh1ch anclent mus1c now flnds itself. We have admlrable theoretlcal treatlses and we have also a few 1ncomplete plans and speclflcatlons; for what 1s a mu31cal score but a draw1ng or a ground plan of the mu81cal structure? To reproduce 1t, all that IS needed 1s a knowledge of the symbols employed ln the speclflcatlons and the means to interpret them accordlng to the conventlons there used.